My single serve cups started to get stuck after about 2 years. Here's what I did. Picture one shows a catch on the inner base that holds the cup in place tight when blending. Picture two shows a little release lever on the back side, push down on it and twist cup at same time and it should get cup off no problem. Next to prevent from getting stuck again see picture three file/ sand the tabs as shown. I did not try this but before but you sand tabs you might try to put a little oil maybe vegetable oil at the yellow arrows in picture one. "iFixit Staff Suggestion: Visit the blender lid stuck wiki for more related fixes."
It is near impossible to replace that is why there is no replacement part. The end that attaches to inside machine goes to a enclosed reel. So you have to remove the reel and disassemble it both jobs looked very involved. The other end is very hard as well. I came up with a very easy fix you will need to order part #FA2000-000 from foodsaver. You will need to cut the hose about a inch from the canister on the new part and the old part. Now you need to splice the two parts with a small tube. I used a 1/4” delrin tube I cut the flared end off and it fits inside both hoses to join them together. Any questions ssaammss@aol.com
